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dfilter-int.h

/*
 * $Id: dfilter-int.h 30612 2009-10-18 23:25:33Z guy $
 *
 * Wireshark - Network traffic analyzer
 * By Gerald Combs <gerald@wireshark.org>
 * Copyright 2001 Gerald Combs
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */

#ifndef DFILTER_INT_H
#define DFILTER_INT_H

#include "dfilter.h"
#include "syntax-tree.h"

#include <epan/proto.h>
#include <stdio.h>

/* Passed back to user */
struct _dfilter_t {
      GPtrArray   *insns;
      GPtrArray   *consts;
      guint       num_registers;
      guint       max_registers;
      GList       **registers;
      gboolean    *attempted_load;
      int         *interesting_fields;
      int         num_interesting_fields;
      GPtrArray   *deprecated;
};

typedef struct {
      /* Syntax Tree stuff */
      stnode_t    *st_root;
      gboolean    syntax_error;
      GPtrArray   *insns;
      GPtrArray   *consts;
      GHashTable  *loaded_fields;
      GHashTable  *interesting_fields;
      int         next_insn_id;
      int         next_const_id;
      int         next_register;
      int         first_constant; /* first register used as a constant */
} dfwork_t;

/* Constructor/Destructor prototypes for Lemon Parser */
#if GLIB_CHECK_VERSION(2,16,0)
void *DfilterAlloc(void* (*)(gsize));
#else
void *DfilterAlloc(void* (*)(gulong));
#endif

void DfilterFree(void*, void (*)(void *));
void Dfilter(void*, int, stnode_t*, dfwork_t*);

/* Scanner's lval */
extern stnode_t *df_lval;

/* Return value for error in scanner. */
#define SCAN_FAILED     -1    /* not 0, as that means end-of-input */

/* Set dfilter_error_msg_buf and dfilter_error_msg */
void
dfilter_fail(const char *format, ...);

void
DfilterTrace(FILE *TraceFILE, char *zTracePrompt);

#endif

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